Yu Koshiishi boxer
- bouts
- 6
- won
- 4
- lost
- 2
- draw
- 0
- Status
- inactive
- Division
- minimumweight
- Debut
- 2008-05-09
- Height
- 5′ 2″/157cm
- Reach
- -
- Age
- -
- Born
- 1985-06-08
- Death
- -
- Nationality
- Japan
| Date | Opponent | Last Opponents' Results | Place | Result |
|---|---|---|---|---|
| 2009-11-16 | Chiho Ueda | LW | Korakuen Hall | WIN Unanimous decision |
| 2009-06-08 | Yoko Kuroda | W | Korakuen Hall | WIN Split-decision |
| 2009-02-16 | Kumiko Nishida | WWWLLW | Korakuen Hall | LOST Technical knockout |
| 2008-10-12 | Tomoyo Noguchi | W | Korakuen Hall | WIN Technical knockout |
| 2008-08-12 | Saemi Hanagata | debut | Korakuen Hall | WIN Unanimous decision |
| 2008-05-09 | Tomoyo Noguchi | debut | Korakuen Hall | LOST Unanimous decision |